A year has passed since work started on Highways England's biggest current project in the UK: the A14.

The four-year project will see 21 miles of the A14 between Cambridge and Huntingdon upgraded to three lanes in each direction, including a new 17-mile bypass south of Huntingdon, and four lanes in each direction between Bar Hill and Girton.

After work started in November 2016, construction bosses say they are jut over a quarter of the way through the job and are on track to open the road by the end of 2020.

So far, 3 million hours have been worked, and 2.5 million cubic metres of soil - that's 1,000 Olympic swimming pools' worth - have been moved into position to create foundations for the road and junctions.

The first side road bridge opened in September 2017 ahead of schedule, and work to build 34 new bridges and structures, including the 750m River Great Ouse viaduct, is under way.

Behind the scenes on the A14: these two structures will form the A14 bridge over the new A1.

Highways England estimates the improvements will cut up to 20 minutes off journeys.